Cold-rolled silicon steel thin strip continuous annealing production line deviation rectifying device and method

Abstract

The invention discloses a cold-rolled silicon steel thin strip continuous annealing production line deviation rectifying device and method. The device comprises a control system and a plurality of deviation rectifying units. Each deviation rectifying unit comprises a detection mechanism used for detecting the current deviation amount of strip steel at the position, a deviation rectifying roller located below the strip steel and used for applying deviation rectifying force to the strip steel, and a swing mechanism capable of driving the deviation rectifying roller to swing leftwards and rightwards relative to the strip steel on the horizontal plane. The most downstream deviation rectifying unit further comprises clamping rollers distributed on the working side and the transmission side above the strip steel and pressing mechanisms capable of driving the clamping rollers in one-to-one correspondence to press the strip steel downwards, the pressing mechanisms can be driven by the swing mechanism to swing synchronously with the deviation rectifying rollers, and the clamping rollers are parallel to the deviation rectifying rollers. The control system is connected with all the detectionmechanisms, the swing mechanisms and the pressing mechanisms and used for controlling the swing direction and angle of the deviation rectifying rollers and the pressing force of the clamping rollers according to the current deviation amount. According to the cold-rolled silicon steel thin strip continuous annealing production line deviation rectifying device and method, continuous deviation rectification can be achieved, the deviation rectification range is large, the retentivity is good, and no quality defect is generated for a continuously-operating cold-rolled silicon steel thin strip.

Description

technical field [0001] The invention belongs to the field of cold-rolled silicon steel production equipment, and in particular relates to a deviation correcting device and method for a continuous annealing production line of cold-rolled silicon steel thin strips. Background technique [0002] The continuous annealing production line is a continuous production unit that performs a series of processes such as pre-cleaning, annealing, post-cleaning, coating, and drying on cold-rolled silicon steel. Changes will cause strip deviation. Especially for the high-speed (150m / min~180m / min) continuous annealing production line of cold-rolled silicon steel thin strip (0.1mm~0.3mm), if the form of floater baking furnace is adopted, due to the long steel strip at the exit of the floater In the suspension state, the deviation is more frequent during the production process, and because the strip steel is thin, the three-roller CPC in the traditional scheme has a small wrap angle, so the de...

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Problems solved by technology

Especially for the high-speed (150m / min~180m / min) continuous annealing production line of cold-rolled silicon steel thin strip (0.1mm~0.3mm), if the form of floater baking furnace is adopted, due to the long steel strip at the exit of the floater In the suspension state, the deviation is more frequent during the production process, and because the strip steel is thin, the three-roller CPC in the traditional scheme has a small wrap angle, so the deviation correction roller and the strip steel cannot generate a large friction force, and the deviation correction ability is insufficient. It is easy to cause production accidents such as edge scraping and belt breakage

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